初次非骨水泥全髋关节置换术后股骨假体周围脆性骨折。
Periprosthetic fragility fracture of the femur after primary cementless total hip arthroplasty.
机构信息
Department of Orthopaedic Surgery, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan.
Department of Orthopaedic Surgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan.
出版信息
Mod Rheumatol. 2022 Apr 18;32(3):626-633. doi: 10.1093/mr/roab025.
OBJECTIVES
Periprosthetic bone fragility due to stress shielding (SS) can be a risk factor of periprosthetic fracture after cementless total hip arthroplasty (THA). We aimed to obtain epidemiological information on periprosthetic fragility fracture of the femur (PPFF) after THA.
METHODS
We retrospectively reviewed the medical records of 1062 hips that had undergone cementless THA. We evaluated the epidemiological data as well as the features of PPFFs.
RESULTS
Of the 1062 hips, 8 (0.8%) were diagnosed with PPFFs. The survival rates, with the occurrence of PPFF as the end point, were 99.2% and 97.6% at 10 and 16 years postoperatively, respectively. When patients were classified as having either mild or severe SS on radiographs 5 years postoperatively, there was no significant difference in the survival rate, with PPFF as the end point.
CONCLUSIONS
In our cases, the incidence of PPFF after cementless THA was 0.8%.
目的
由于应力遮挡（SS）导致的假体周围骨脆弱可能是骨水泥型全髋关节置换术（THA）后假体周围骨折的一个风险因素。我们旨在获取 THA 后股骨假体周围脆弱性骨折（PPFF）的流行病学信息。
方法
我们回顾性分析了 1062 例接受骨水泥型 THA 的患者的病历。我们评估了流行病学数据以及 PPFF 的特征。
结果
在 1062 例髋关节中，有 8 例（0.8%）被诊断为 PPFF。以发生 PPFF 为终点，术后 10 年和 16 年的生存率分别为 99.2%和 97.6%。在术后 5 年，当患者根据 X 线片被分类为轻度或重度 SS 时，以发生 PPFF 为终点，生存率无显著差异。
结论
在我们的病例中，骨水泥型 THA 后 PPFF 的发生率为 0.8%。
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